Class V

The length of a rectangular plot is 20 metres more than its breadth. If the cost of fencing the plot @ 26.50 per metre is Rs. 5300, what is the length of the plot in metres ?
  1. 40
  2. 120
  3. None of these
  4. Data inadequate
The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area ?
  1. 25% increase
  2. 50% increase
  3. 50% decrease
  4. 75% decrease
The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is:
  1. 40%
  2. 42%
  3. 44%
  4. 46%
The ratio between the perimeter and the breadth of a rectangle is 5 : 1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle?
  1. 16 cm
  2. 24 cm
  3. Data inadequate
  4. 18
Which of the following is a reasonable measure for the area of a classroom ?
  1. 100 square inches
  2. 100 square feet
  3. 100 square yards
  4. 100 square miles
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